Compound Interest Calculator
See how an investment grows with compound interest over time.
Final Amount
Interest Earned
Free to useNo software to install — works in any modern browser.
No signup neededOpen the tool and start straight away.
Runs in your browserNothing you enter is sent to a server.
Works on mobileSame tool on your phone, tablet or desktop.
How it works
- Enter — type or paste your values or text.
- Get the result — it is worked out in your browser.
- Adjust — change the inputs to compare, or copy the result.
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About Compound Interest Calculator
Projects how a principal amount grows over time at a given interest rate, with a choice of compounding frequency (annually, quarterly, monthly, or daily) — the compounding frequency alone can noticeably change the final result, which this makes easy to compare.
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